Fibrous thread.



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UNITED sTATEs PATENT r ernten.

ALBERT H. HENDERSON, or BALTIMORE, MARYLAND, AssIeNOR To THE HENDERSONRUBBER COMPANY, OF BALTIMORE, MARYLAND, A CORPORATION or MARYLAND.

FIBBOUS THREAD.

No Drawing.

Specification of Letters `Patent.

Patented Apr. 1d, 191e.

Application mea January e, 191s. senal No. 740,344.

1'0 all whom 'it may concern Y Be it known that I, ALBERT H. HENDER-son, a citizen of the United States, residing at Baltimore, in the Stateof Maryland,

have invented new and useful Improvelwrought into a fabric or cloth."l

In my Patent No. 1,020,499, dated March'.

19, 1912, is described and claimed, in part, a method of treat-ing fabrifrom which the oils, waxes and resins have been' removed o vmercerization, the said method involving the filling of the interiors ofthe fibers and the interstices existing between the juxtaposed fiberswith rubber. The same patent also has relation to the product of suchmethod. In my application Serial No. 674,682, filed Februaryl, 1912, isdescribed and claimed a mercerized fabric of distinctive charactertreated in a manner similar to that set forth in my aforesaid patent.

My present invention is directed to a mer-I cerized fibrous thread orcollection of fila? ments, the said threadA being first cleansed,thereafter subjected to a mercerizing process, and interiorly filled,impregnated and coated with rubber, the latter lbeing applied to the"mercerized thread in any form suited to the conditions, whether in theform of a solution or otherwise. The term rubber is here meant toinclude any of the known substitutes for that article, or reclaimedrubbers adapted to the purpose in view.

While in my Patent No. 1,020,499, and in u'iy said application SerialNo, 674,682, after the cloth has been woven orwrought, the threads andfibers constituting the fabric and the interstices existing between thejuxtaposed threads or ilbers of such fabric are substantially filledwith rubber, certain conditions may arise, as in unskillfulmanipulations or withdefective material, under which an incompletefilling or a coating of the fibers may occur.

Therefore, one of the objects of my present-invention is to avoid suchcontingencies by treating the: individual thread interiorly andexteriorly with rubber, so that it may thereafterbe woven or wroughtinto a fabric o r cloth, and if necessary be finally sub-l jected tofurther rubber treatment whereby any insufficiency in the filling of theinterstices existing between the juxtaposed fibers may be rectified andthe most perfect rubbersurface practicable obtained. i

I have 4discovered after examinations and tests made microscopically,chemically, and wlth the ald of the camera, that ordinary cotton threadafter ,mercerizatiom is as to each of its filaments or fibers, a cleanhollow tube adapted as an unobstructed receptacle for rulbber within itsinterior, and

also cleansed and fitted for a `coating of rubber upon its exterior, sothat when -rubber-treated and -woven or wrought into a fabric the wallsof each filament'or liber are prevented by the rubber from collapsing.

under pressure or movement, andV that in consequence no frictioncanexist between such wallsbut is taken up by the rubber.

Furthermore, that inasmuch as the exterior of each filament or fiber iscoated with rubber'the friction to which a wrought or woven fabric madeof such constituents is subjected is not thrown upon the cotton itselfbut upon such rubber coating, whereby the strength and durability of thefabric are' greatly increased. Under myY present invention, thepreliminary mercerization of the individual thread, or the collection offibers constituting it, followed by the individual filling and theexterior coating of each ,fiber with rubber, permits of a tighter weavewhereby the various elements entering into the cloth are caused to` moreclosely unite and adhere than where the ,rubber Vtreatment is carried,out after the threads or fibers have been woven or wrought into a cloth.

My invention is applicable'to a single thread or to a single or multipleply fabric made of threads individually treated in the manner hereindescribed. Sheets of such fabric may, if required, be consolidated bycompression and thus adapted for uses in the various arts. In preparing(my improved article of manufacture for the market the rubber constituentmay or may not be vulcanized.

So far as I am advised, no cotton Orot er individual thread was, priorto myinvention, mercerized whereby vto produce such interior andexterior conditions, adapted to the filling and coating with rubber, asare herein described; nor, so far as I am informed, was any mercerizedthread; vprior to my discovery of its aiiinity for rubber, treated withsuch substance either within or without or in any manner. j

The method of preparing my improved thread, or any mechanical applianceused in carrying out such method, forms no part of my present invention.

.Having thus described my invention, I -claimz- 1. The herein describedarticle of manufacture consisting of a mercerized brous thread theinterior of each constituent part of which is filled and the exterior ofwhich 15 is coated with rubber.

2. The herein described article ofmanu-A Y ofwhich is lled and theexterior of which 20 is coated with ru'bber, the latter being V111-canized.

In testimony whereof I ax my signature in presence of two witnesses.

ALBERT YH. HENDERSON. Witnesses:

C.- B.` BULL, Cinemas. LQWELL HOWARD.

